Of san diego



N. ECKLES.

WRENCH.

APPLICATION FILED our 13, 1.920.

1,408,275, Patented Feb. 28, 1922.

I II In 1; M i

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IN VEN TOR.

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. ATTORNEY UNITED STATES NOBLE ECKLES, OF SAN DIEGO, CALIFORNIA, ASSIGNOR OF THREE-FOURTHS LEWIS W. RHODE. 01* SAN DIEGO, CALIFORNIA.

PATENT OFFICE.

WRENCH.

Specification of Letters Patent.

Patented Feb. 28, 1922.

To alt whom it may concern Be 11: known that I, NOBLE EOKLES, a

citizen of the United States, residing at San Diego, in the county of San Diego and State of California, have invented a certam new and useful Wrench, of which the following is a specification.

My invention relates to a wrench for holding objects to prevent their turning and the like particularly bolts with round, fiat heads, such as carriage bolts or automobile running board bolts and the objects of my invention are: First, to provide a wrench of this class in which a round headed bolt may be rigidly supported for removing a nut or the like; second, to provide a device of this class in which a plurality of levers are operated simultaneously in unison for engagement with the bolt head; third, to provide a device of this class in which'the leverage is multiplied so that the action of the engaging 7 members is very forceful; fourth, to provide a device of this class which engages and releases automatically and simultaneously with the movement of levers; fifth. to provide a device of this class which is very simple and economical of construction, durable, easy to operate, efficient in its action and which will not readily deteriorate or get out of order.

Vith these and other objects in view as will appear hereinafter my invention consists of certain novel features of construction. combination and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the char-.

acters of reference thereon which form a part of this application in which:

Figure 1 is a side elevational view of my device showing the various relative positions of the parts when in operating posi tion by dotted lines; Fig. 2 is a longitudinal sectional view of the device; Fig. 3 is an end view thereof and Fig. 4 is a sectional view through 44: of Fig. 1.

Similar characters of reference refer to similar parts and portions throughout the several views of the drawings.

The engaging levers 1, springs 2, lever supporting member 3, screw member 4, nut 5, inclined member 6, and bar 7, constitute the principal parts and portions of my wrench.

The levers l, of which there are three positioned an equal distance apart in slots 3 1n the support 3 and' pivotally mounted upon axles 3 which are preferably in the form of screws. These lever members 1 are provided with sharpened extended engaging points 1 which are adapted to facilitate their engagement with the bolt head and their opposite ends are rounded adapted for engagement with the inclined portion 6 of the inclined member 6. These lever members 1 are secured together by means of a spring 2 on the opposite side of the support from the engaging ends, which springs tend to separate the engaging ends of said levers when they are released. Secured centrally in the supporting member 3 is the one end of the screw member 4 and it is held rigidly in position by means of a lock nut 5. Mounted on this screw member 4 and adapted to screw thereon is the inclined member 6 which is provided with a frusto-conical shaped inclined portion adapted to engage the ends of the levers 1 and move the engaging ends toward each other as shown by dotted lines in Fig. 4 of the drawings. This inclined member is provided with an extended portion which is provided with a hole 6 therein adapted for the reciprocal movement of the rod 7 which is adapted as a lever for turning the member 6 onto the screw 4.

Though I have shown and described a particular construction, combination and ar rangement of parts and portions I do not wish to be limited to this particular construction, combination and arrangement but desire to include in the purview of my inand forces them apart thereby forcing the engaging ends toward each other; that the engaging points are so shaped that they penetrate the sides of the bolt head in three equidistant points thereby readily gripping the bolt head and prevents its turnin Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

l. A carriage bolt head wrench, includ ing an annular disc-shaped supporting member provided with notches extending inwardly radially from the periphery, a plurality of levers pivotally mounted intermediate their ends in said notches on said supporting membeneach provided with a sharpened extended longitudinal engaging point a screw member with one end secured to said supporting member with one end extending outwardly between the extended ends of said levers and a frusto cone shaped member adapted to screw on said screw member whereby the inclined portion of said frusto cone shaped member will enand spread the extended end of said levers.

A. carriage bolt head wrench, including an annular disc-shaped supporting member provided with notches extending inwardlv radially from the periphery, a plurality of levers pivotally mounted intermediate their ends in said notches on said supporting member, each provided with a sharpened extended longitudinal engaging point, screw member with one end secured to said supporting member with one end extending outwardly between the extended ends of said levers, a frustocone shaped member adapted to screw on said screw member whereby the inclined portion of said frusto cone shaped member will engage and spread the extended end of said levers and yieldable means for connecting the extended ends or said levers on the side of said support toward said screw.

3. A carriage bolt head wrench, including an annular disc-shaped supporting member provided with notches extending inwardly radially from the periphery, a plurality of levers pivotally mounted intermediate their ends in said notches on said supporting member, each provided with a sharpened extended longitudinal engaging point, a screw member with one end secured to said supporting member with one end. extending outwardly between the eX- tended ends of said levers, a frusto cone shaped member adapted to screw on said screw member whereby the inclined portion of said frusto cone shaped member will engage the extended end of said levers and a rod reciprocably mounted in said frusto conical shaped member adapted to facilitate the turning of said frusto conical shaped member.

In testimony whereof, I have hereunto setmy hand at San Diego, California, this 7th day of October, 1920.

' NOBLE EOKLES. 

